Citation: | WANG Xinglong, HE Min, LIU Mingxueet al. Air traffic CPS cascading failure and mitigation strategy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(12): 2426-2433. doi: 10.13700/j.bh.1001-5965.2020.0466(in Chinese) |
To effectively alleviate the cascading failure of air traffic, the traditional load-capacity model is improved, and the critical value of capacity adjusting parameter is discovered. An air traffic Cyber Physical System (CPS) model is built, and its nodes are defined to be in three states: normal, congested, and failed. Different flow allocation strategies, including degree allocation, betweenness centrality allocation, and remaining capacity allocation, are adopted to alleviate the cascading failure of air route network and air traffic control network, and the mitigation result is assessed by network normal rate. Taking air traffic CPS in East China as an analysis example, the results show that the network recovers first under betweenness centrality allocation, which suggests that it has good strength against cascading failure. Nodes' ability to receive additional flow is made full use of under remaining capacity allocation, and the network returns to normal state first, which indicates that the mitigation strategy is reliable.
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